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DO NOT MERGE Apply a maximum char count to the load label api

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The system is overwhelmed by an enormous label string returned by
the load label api. This cl truncates the label string if it exceeds
the maximum safe length.

Also update the max safe label length to 1000 characters, which is
enough.

Bug: 67013844
Test: atest PackageManagerTest
Change-Id: Ia4d768cc93a47cfb8b6f7c4b6dc73abd801809bd
Merged-in: Ia4d768cc93a47cfb8b6f7c4b6dc73abd801809bd
This commit is contained in:
Rhed Jao
2021-07-30 15:52:05 +08:00
parent 22500563c1
commit 6172201637
1 changed files with 4 additions and 2 deletions
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6
core/java/android/content/pm/PackageItemInfo.java
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@@ -49,7 +49,7 @@ import java.util.Comparator;
*/
public class PackageItemInfo {
/** The maximum length of a safe label, in characters */
private static final int MAX_SAFE_LABEL_LENGTH = 50000;
private static final int MAX_SAFE_LABEL_LENGTH = 1000;
/** @hide */
public static final float DEFAULT_MAX_LABEL_SIZE_PX = 500f;
@@ -198,7 +198,9 @@ public class PackageItemInfo {
return loadSafeLabel(pm, DEFAULT_MAX_LABEL_SIZE_PX, SAFE_STRING_FLAG_TRIM
| SAFE_STRING_FLAG_FIRST_LINE);
} else {
return loadUnsafeLabel(pm);
// Trims the label string to the MAX_SAFE_LABEL_LENGTH. This is to prevent that the
// system is overwhelmed by an enormous string returned by the application.
return TextUtils.trimToSize(loadUnsafeLabel(pm), MAX_SAFE_LABEL_LENGTH);
}
}